<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Job管理页面</title>
</head>
<style>
    *{
        padding: 0;
        margin: 0;
        list-style: none;
    }
    .jnav{
        height: 50px;
        background-color: aqua;
    }
</style>
<body>
    <nav class="jnav">

    </nav>
</body>
</html>